* Powerful engines; fuel-efficient base model; quick-folding hardtop; comfortable ride; strong brakes; excellent visibility for a roadster. Source: Edmunds * The 2015 BMW Z4 is a striking take on the classic roadster. Remaining true to its roadster heritage, the Z4 features a long engine hood, lower belt and trunk line and low seating position. The 2015 Z4 also introduces the first-ever retractable hardtop in BMW Roadster history. Closed, it becomes an integrated part of the exterior design and provides 40% more glass than previous models allowing for an enhanced sense of space and improved visibility. Thanks to a lightweight chassis with an aluminum front axle and multilink rear suspension, the Z4 brings you a whole new level of comfort, reduced fuel consumption, and impressive handling. The optional Adaptive M Sport Suspension allows you to choose between Normal or Sport modes for even greater driving dynamics. Powering the Z4 is a choice of 3 engines, a 2.0L 4-cylinder TwinPower Turbo generating 240hp and 260 lb-ft of torque at just 1250 rpm, a TwinPower Turbocharged inline six-cylinder engine delivering 300hp and 300 lb-ft of torque at 1400-rpm, or an enhanced version of the latter delivering 335hp and up to 369 lb-ft of torque. Inside you will be treated to a refined driver-oriented interior and special accent surfaces like Satin Silver, Brushed Aluminum, or optional Ash Grain Wood trim. The redesigned BMW iDrive with optional navigation is the most intuitive entertainment and navigation system yet. Full-screen maps display your destination directions and traffic information. If you are a safety plan subscriber with the optional BMW Assist + Bluetooth System, it will even redirect you in the event of heavy congestion with the aid of the 8.8 display screen. Source: The Manufacturer Summary * Powerful and fuel-efficient engines; engaging handling; upscale interior; hatchback-style utility. Source: Edmunds